Add devops days presentation, software_pi service, and update software_toolbx

- Add presentations/devops_days_self_hosting_presentation.md - Add active/software_pi/ service directory - Update active/software_toolbx/Containerfile - Update retired/kubernetes_userspace submodule LLM-Generated: true
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+# An Opinionated Guide to Home Labbing: from Hardware to Software
+
+## Abstract
+
+Between increasingly required subscriptions, privacy terms changing overnight,
+and the difficulty of downloading your own data, it often feels like we rent our
+digital lives rather than own them. We'll walk you through hardware selection,
+the tools you'll need, the operating systems you'll install, and the software
+you might want to support for your homelab. We'll share our experience with our
+own variety of hardware, which ranges from tiny Raspberry Pis to mid-size laptop
+motherboards to overkill Threadripper servers. We'll talk about the operating
+systems we use and which ones have found the most stability and longevity in our
+deployments while comparing them to other homelab operating systems. We'll cover
+common homelab use-cases like media servers, Git servers, network storage, and
+local AI tooling. We'll also talk about safety and maintenance so you can weigh
+the choice of cutting the cloud cord properly. By the end of this talk you'll have a
+starting point for your own homelab journey, and maybe even a grocery list.
+
+Alex Oladele is a senior software engineer at Red Hat, working on Ansible Galaxy
+as part of the Ansible Automation Platform. He is a member of Black Python Devs
+and speaks at conferences about compassionate culture, Python, and practical
+engineering skills. He is passionate about mentoring and creating safe,
+inclusive spaces in tech. Outside of work, he builds silly side projects and
+runs a homelab he is very proud of
+
+Reese is DIY technology enthusiast with a passion for projects that make things
+easy. He's been working in development since 2017 with experience in risk,
+scripting automation, full stack web development, container infrastructure, amd
+homelab server hardware. He has a passion for mentoring, but even more of a
+passion for sharing the new tech he found last week with anyone who will listen.
+Currently, he leads the agentic vulnerability management team at Hungtington
+Bank.
+
+## Structure
+
+"I'm lazy, I don't want my family to kill me, and it works"
+
+1. I want this in my house
+2. I want to connect outside my house
+3. I want my friends to connect
+4. I don't want this to go down
+5. I want to recover if there's an error
+6. My server died, what now?
+
+## Thoughts
+
+Give 2 ideas per section. First for "I can't let this break my family will kill
+me". Second for "I have an understanding partner who is my cat and won't care."
+
+## Story driven presentation
+
+I have decided to make a strong home server. Where do I even start?
+
+Overarching theme:
+
+- This is about privacy, control, and stability
+- This is not about saving money
+- This is not about keeping up with the bleeding edge of the industry
+- (Both of these things might happen though, and that's great when it does)
+
+1. Hardware: you find a box (old laptop, rpi) you're set.
+
+   - Reese
+     - Framework 13 motherboard for experiments, QA, Forgejo/Gitea runners, `experimental.reeseapps.com`
+     - Raspberry pi for home assistant
+     - Threadripper 3000 series with a bunch of disks for main apps
+     - framework desktop for local AI
+   - Alex
+     - "Gaming PC Foundation": 5950x + ddr4 64GB ram (before memory shortage)
+     - Framework motherboard
+     - Raspberry pi cluster
+
+2. I'm a little familiar with linux but what do I install on that hardware?
+
+   - Alex: Truenas, Raspberry Pi OS
+   - Reese: Address the proxmox shaped elephant in the room, Fedora, Alma Linux, cloud init
+
+3. What does your homelab maintenance toolbox look like? What toolkit do you
+   open to work on your homelab? What do you bring to the table to start
+   tinkering?
+
+   - Reese: btop, podman, uv, yarn, pi.dev, borg backup, distrobox (talk about misconceptions like bash history preservation)
+     - AI in the homelab, safety, security, privacy
+     - Discuss the progression: chat bots -> harnesses -> agentic integration
+   - Alex: truenas catalog, ansible, opencode
+     - Discuss security in your tooling like setting wait periods before yarn installing
+     - mention uv acquisition
+     - Building custom apps with AI
+
+4. So you want to launch some containers
+
+   - We dislike docker compose
+   - Truenas apps
+   - quadlets + podman
+   - kubernetes (k3s) and its downsides
+
+5. When to use VMs
+
+   - An extra layer of isolation
+   - Easier networking
+   - Simpler to prevent resource exhaustion
+     - Talk about "right-sizing": Every VM gets 2GB ram and 2cpu cores to start. On a 32GB system, assuming 4GB for the host, that creates 14 VM "slots".
+     - Alma Linux 10 takes up about 450MB at boot with nothing installed
+     - Double the memory when resource exhaustion happens
+
+6. I want to install a new app while I'm at friend's house
+   - Truenas web portal (app page, both official and community) + tailscale
+   - VPN and I need access to my computer
+
+7. I want to check my server status on my phone (updates, disks, memory pressure, error logs, services running)
+   - Truenas web interface
+   - Cockpit web interface
+
+8. I want to add more storage
+   - Truenas ZFS storage pools
+   - BTRFS pools
+
+9. I want to install a new alpha app without much support
+   - Truenas custom docker compose images
+   - Fedora clone and run (in a VM for style)
+
+10. I want to backup my photos
+    - Google Photos: don't use git, images aren't meant for git
+    - **Immich, with backups (tell stories about losing my image data)**
+
+11. I want a local copy of my code
+    - Github
+    - Gitea/Gitlab (talk about that transition)
+    - Forgejo
+
+12. I want private document editing
+    - Google drive, Obsidian (forces use of markdown as my standard)
+    - VSCode + pandoc (commit markdown files as your documents)
+    - Nextcloud (Collabora)
+
+13. I want a local, offline LLMs
+    - llama.cpp is great, but has a very high learning curve
+    - Ollama has pitfalls
+      - You don't know which model you're downloading
+      - Model inference is not optimized
+
+14. I want to watch media I own
+    - Plex - I know that ruffles some jimmies. Give example: add letterbox support into Plex.
+    - Jellyfin if you're cheap
+
+15. I want to know when something goes wrong
+    - Uptime Kuma!
+    - NTFY
+    - N8N
+    - Truenas sending emails if there's an error
+    - Fedora requires a custom solution
+
+16. I want "reasonable availability"
+    - Truenas hits 90%+ availability. Updates take it down for reboot (5-10
+       minutes). Disk failure requires full shutdown, disk swap, and rebuild.
+       This could be half a day.
+    - Fedora hits 90%+ availability. Updates take it down for reboot (<1 min).
+       Disk failures can be ignored by rebalancing. Disk failures still require
+       full shutdown and resilver. This can take half a day.
+
+17. I want to automate my house
+    - Home Assistant (raspberry pi or green)
+
+18. I want backups of all my data
+    - No backups is an option
+    - Local weekly backups to usb drives via Truenas data replication
+    - Borg backup via CLI or Pika.
+    - Full disk backups, app directory backups, hybrid model
+    - Backblaze and S3 integration for Truenas
+    - 3 copies of your data, 2 different media, 1 off site.
+
+    1.  I want a private VPN
+    - Tailscale, moved from wifiman, also moved from pivpn
+    - unifi wireguard server, rawdog wireguard on a pi